Well, if I have the hex, I can package it as an app for you.

What would you do about the absolute jumps though?  If there was a jp $9D9A in the code you would have to remap it to jp $4005.  With only the hex code, you have to disassemble it and it would be pretty cumbersome to do.

I didn't know ion wasn't an app.  Hmm... now that I think about it, maybe it is possible, but what you would have to do is write some code to a safe ram area that is able to run the new program and then re-open the shell again after it returns.  Then you would have to jump to that location and hope that the client code doesn't write over that area.  All of that still requires a lot of inline ASM.

This sounds interesting and curious what you come up with.

Hey, I wrote an OS in TI-BASIC one time with a start menu, games, notepad, paint, and some other stuff.  So its certainly possible.  But realistically, I don't think you'll be able to do program launching from a program since it would need to copy it over it's own code, destroying the shell.  It pretty much has to be an application to do that.  I like the idea though, there's still probably a lot you can do, certainly much more than BASIC.

Did you ever release the OS program you made?

Quote from: SirCmpwn on April 13, 2010, 05:03:41 pm

Well, if I have the hex, I can package it as an app for you.

What would you do about the absolute jumps though?  If there was a jp $9D9A in the code you would have to remap it to jp $4005.  With only the hex code, you have to disassemble it and it would be pretty cumbersome to do.

I didn't know ion wasn't an app.  Hmm... now that I think about it, maybe it is possible, but what you would have to do is write some code to a safe ram area that is able to run the new program and then re-open the shell again after it returns.  Then you would have to jump to that location and hope that the client code doesn't write over that area.  All of that still requires a lot of inline ASM.

Hmm, I could always just have the app run the shell from 9D95 and return to the shell as soon as programs were finished executing.  As for saferam, you could just call programs instead of jumping to them.  Then, when they ret out, they come back to you.

Awww Sad panda. That really sucks, it sounds interesting. Do you remember how big it was? Did it used libraries or anything?

How long ago was that? That sucks, it sounds cool.

No, no libraries.  This was before I even knew libraries existed.  It was about 5-6k at the peak.  Like I said, I still have an old backup, but its really lame without all the features.

It used xLib, as well as some other assembly programs.  It pretty much used everything ever made for the calculator.  Codex, xLib, program options (that one is more obscure).  I didn't know about Celtic III at that time, but I used almost everything else.

Oh geez, it was forever ago.  But I'm pretty good about optimizing, so I don't think it was outrageous.